1-D calcium, 2-D zinc and 3-D manganese coordination polymers derived from pyrazine-2,3,5,6-tetracarboxylic acid

Golafale, Saki T.; Ingram, Conrad W.; Holder, Alvin A.; Chen, Wei-Ya; Zhang, Z. John

doi:10.1016/j.ica.2017.07.041

Title: 1-D calcium, 2-D zinc and 3-D manganese coordination polymers derived from pyrazine-2,3,5,6-tetracarboxylic acid

Journal Article · 29 July 2017 · Inorganica Chimica Acta

DOI: https://doi.org/10.1016/j.ica.2017.07.041 · OSTI ID:1571369

Golafale, Saki T. ^[1]; Ingram, Conrad W. ^[1]; Holder, Alvin A. ^[2]; Chen, Wei-Ya ^[3]; Zhang, Z. John ^[3]

Clark Atlanta Univ., Atlanta, GA (United States). Dept. of Chemistry
Old Dominion Univ., Norfolk, VA (United States). Dept. of Chemistry and Biochemistry
Georgia Inst. of Technology, Atlanta, GA (United States). School of Chemistry& Biochemistry

Three coordination polymers were synthesized from pyrazine-2,3,5,6-tetracarboxylic acid (H₄pztc) in combination with calcium, zinc and manganese ions under hydrothermal conditions and their structures were determined by single crystal X-ray diffraction, powdered X-ray diffraction, Fourier transformed infrared spectroscopy, thermogravimetric and elemental analyses. Structure 1, {(Ca(H₂pztc)(H₂O)₃)n, crystallizes as 1-D chains, with the partially deprotonated ligand in –O,N,O– coordination mode and with the Ca atoms in an uncommon nine coordinate environment. Structure 2, {Zn1(pztc)(H₂O)₂Zn2(H₂O)₄}_n, is an infinite, 2-D coordination network that contains two nonequivalent Zn atoms, each with octahedral geometry, and the fully deprotonated pztc^4- in bis-bridging chelating coordination mode. The stacked 2-D layers are stabilized by extensive inter-layer water-carboxylate hydrogen-bonding with an inter-layer distance of 4.9 Å. Structure 3, {(Mn₂(pztc)(H₂O)₂)}_n, is a covalently bonded 3-D network containing two nonequivalent Mn atoms, each with octahedral geometry, and the fully deprotonated pztc^4- units. Structure 3 exhibits paramagnetic behavior at room temperature, and weak antiferromagnetic properties at very low temperature, which is consistent with their nearest Mn…Mn separation distance of 4.9 Å.

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Research Organization:: Clark Atlanta Univ., Atlanta, GA (United States)

Sponsoring Organization:: USDOE Office of Fossil Energy (FE), Clean Coal and Carbon (FE-20)

Grant/Contract Number:: FE0022952

OSTI ID:: 1571369

Alternate ID(s):: OSTI ID: 1549691

Journal Information:: Inorganica Chimica Acta, Vol. 467, Issue C; ISSN 0020-1693

Publisher:: ElsevierCopyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 7 works

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37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
Coordination polymers
metal organic framework
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CCDC 1525793: Experimental Crystal Structure Determination Golafale, Saki T.; Ingram, Conrad W.; Holder, Alvin A. https://doi.org/10.5517/ccdc.csd.cc1n6q4q The current record is supplemented by this dataset	dataset	January 2017
CCDC 1525794: Experimental Crystal Structure Determination Golafale, Saki T.; Ingram, Conrad W.; Holder, Alvin A. https://doi.org/10.5517/ccdc.csd.cc1n6q5r The current record is supplemented by this dataset	dataset	January 2017
CCDC 1525795: Experimental Crystal Structure Determination Golafale, Saki T.; Ingram, Conrad W.; Holder, Alvin A. https://doi.org/10.5517/ccdc.csd.cc1n6q6s The current record is supplemented by this dataset	dataset	January 2017